Fort Tiryns

Fort Tiryns was an ancient military fort in Argolis, Greece which was said to have been built by the Cyclopes. In 431 BC, the Spartan mercenary Kassandra infiltrated the fort, burned its war supplies, killed all of its soldiers, and slew several mercenaries before forcing its commander, Dymas, to copy Hippocrates' lost notes for him, as Dymas had memorized all of them.